Answer: [tex]\dfrac{x}{10}-y[/tex]
Step-by-step explanation:
Given : A man earned x pesos in 10 days and spent y pesos during each of those days.
i.e. Total earning in 10 days = x
Earning per day =[tex]\dfrac{x}{10}[/tex] [By unitary method] (1)
Money spent per day =y (2)
We know that
[tex]\text{Savings = Money earned - Money spent}[/tex]
i.e. Subtract (2) from (1), we get
[tex]\text{Savings = }\dfrac{x}{10}-y[/tex]
Hence, the expression to determine how many pesos he saved per day will be:-
[tex]\dfrac{x}{10}-y[/tex]